diff --git a/v3/lib/class-acf-to-rest-api-acf-api.php b/v3/lib/class-acf-to-rest-api-acf-api.php
index dfea978..3071dfa 100755
--- a/v3/lib/class-acf-to-rest-api-acf-api.php
+++ b/v3/lib/class-acf-to-rest-api-acf-api.php
@@ -65,7 +65,7 @@ public function get_id( $object ) {
 			if ( 'option' == $this->type ) {
 				$this->id = sanitize_title( $this->id );
 			} else {
-				$this->id = absint( $this->id );
+				$this->id = preg_replace("/[^0-9]/", "", $this->id);
 			}
 
 			return $this->format_id();
@@ -74,7 +74,7 @@ public function get_id( $object ) {
 		public function get_fields( $request ) {
 			$data  = array();
 			$field = null;
-			
+
 			if ( $request instanceof WP_REST_Request ) {
 				$field = $request->get_param( 'field' );
 			}
@@ -130,7 +130,16 @@ public function get_field_objects( $id ) {
 			$fields_tmp = array();
 
 			if ( function_exists( 'acf_get_field_groups' ) && function_exists( 'acf_get_fields' ) && function_exists( 'acf_extract_var' ) ) {
-				$field_groups = acf_get_field_groups( array( 'post_id' => $id ) );
+
+				if ( strpos( $id, 'user_' ) !== false ) {
+					$filter = array( 'user_id' => str_replace( 'user_', '', $id ) );
+				} elseif ( strpos( $id, 'taxonomy_' ) !== false ) {
+					$filter = array( 'taxonomy' => str_replace( 'taxonomy_', '', $id ) );
+				} else {
+					$filter = array( 'post_id' => $id );
+				}
+
+				$field_groups = acf_get_field_groups( $filter );
 
 				if ( is_array( $field_groups ) && ! empty( $field_groups ) ) {
 					foreach ( $field_groups as $field_group ) {